Why is the Hardrock 100 the hardest ultra to get into in the United States?

146 bibs, thousands of hopefuls
Photo credits:

PICRYL

Why is the Hardrock 100 the hardest ultra to get into in the United States?

The Hardrock 100 is the hardest ultra to get into in the United States because its field is tiny: 146 slots for 2,747 applicants in 2026. Only last year’s winner gets in automatically. You first have to finish a demanding qualifier, meet a volunteer-work requirement, then go through a weighted lottery over multiple years.